| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulating material having a heat insulating function and, furthermore, other additional function. SOLUTION: The heat insulating material 1 having air permeability such as a foaming polystyrene plate comprising open cell is structured by impregnating the heat insulating material with an additive 2 such as zeolite having a characteristic different from the heat insulating material. COPYRIGHT: (C)2006,JPO&NCIPI
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